Microwave optomechanical oscillators

The sensitivity of detection is linked to the spectral purity, which is the figure of merit of the phase noise in oscillators describing the spectral width of the modulated signal. A first challenge in this field lies in the direct generation of high-frequency microwave signals in the GHz domain and above, with ultralow phase noise. A second challenge in this field lies indeed in the implementation of miniaturized, compact, transportable and integrated oscillators, especially for potential on-board applications and on-chip signal processing.

Challenges faced by oscillators are to work at high frequencies created by the two scaling laws of performance for oscillator performances, which is increasing frequency and decreasing size while keeping a high spectral purity